Door jamb extrusion



FIG. 1 is a perspective view of a door jamb extrusion showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The door jamb extrusion is shown with a symbolic break in its length. The appearance of any portion of the door jamb extrusion between the jagged break lines forms no part of the claimed design. 

CLAIM The ornamental design for a door jamb extrusion, as shown and described. 